654430540 has 24 divisors (see below), whose sum is σ = 1394818992. Its totient is φ = 257864640.

The previous prime is 654430531. The next prime is 654430541. The reversal of 654430540 is 45034456.

It is not an unprimeable number, because it can be changed into a prime (654430541) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 242851 + ... + 245530.

It is an arithmetic number, because the mean of its divisors is an integer number (58117458).

Almost surely, 2^654430540 is an apocalyptic number.

It is an amenable number.

654430540 is an abundant number, since it is smaller than the sum of its proper divisors (740388452).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

654430540 is a wasteful number, since it uses less digits than its factorization.

654430540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 488457 (or 488455 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 31.

The square root of 654430540 is about 25581.8400432807. The cubic root of 654430540 is about 868.2028078419.

Adding to 654430540 its reverse (45034456), we get a palindrome (699464996).

The spelling of 654430540 in words is "six hundred fifty-four million, four hundred thirty thousand, five hundred forty".